1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/types.h> 3 #include <linux/errno.h> 4 #include <linux/uaccess.h> 5 6 #include <asm/sfp-machine.h> 7 #include <math-emu/soft-fp.h> 8 #include <math-emu/double.h> 9 10 int 11 fsel(u32 *frD, void *frA, u32 *frB, u32 *frC) 12 { 13 FP_DECL_D(A); 14 FP_DECL_EX; 15 16 #ifdef DEBUG 17 printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC); 18 #endif 19 20 FP_UNPACK_DP(A, frA); 21 22 #ifdef DEBUG 23 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c); 24 printk("B: %08x %08x\n", frB[0], frB[1]); 25 printk("C: %08x %08x\n", frC[0], frC[1]); 26 #endif 27 28 if (A_c == FP_CLS_NAN || (A_c != FP_CLS_ZERO && A_s)) { 29 frD[0] = frB[0]; 30 frD[1] = frB[1]; 31 } else { 32 frD[0] = frC[0]; 33 frD[1] = frC[1]; 34 } 35 36 #ifdef DEBUG 37 printk("D: %08x.%08x\n", frD[0], frD[1]); 38 #endif 39 40 return 0; 41 } 42